Extra Heavy-Duty Pressure Switch Preset

Quality Benefits 

- Extra heavy-duty pressure switch in all parts | Merrill - 3lbs. vs Competitor 2lbs.

- Switch extra-large case for easy wiring | Merrill - 5.7" x 5.3" vs Competitor 3.7" x 3.4"

- Heavy brass wire connections (hold No.4 wire) with set screws inside the brass tube - wires will not slip off the screw

- 3/4" conduit size knockouts for heavy wire (4 places) 

- Adjustment instructions for switch inside top cover

- Contacts open (switch off) at cut-off pressure. Points close (switch on) a cut-in or pressure drop

- Heavy fiberboard bracket for movement of contacts much stronger and heat resistant

- Extra-large silver contact for longer service life

- Captive nut on the switch cover

- 1/4" swivel union so switch case does not need to pivot to install (set screw to stop swivel)

- Raised grounding lug for easy connection - holds two wires

 U.S. Patent # 10,197,051

Certifications & Warnings